DC Charger Testing / Field Service / Laboratory Testing
ST-9980A+ Pro
DC EV Charger Comprehensive Tester
Portable GB/T DC charger tester with dual sockets, 1000 V / 250 A coverage, protocol analysis, short-circuit pre-check and IP67 field protection.

Product Overview
DC EV Charger Comprehensive Tester
ST-9980A+ Pro is a portable third-party DC EV charger tester with interoperability test support. It is designed for charger manufacturers, utilities, third-party inspection organizations, buyers and service teams carrying out R&D debugging, factory tests, field inspection and acceptance. It simulates the vehicle charging process, exports and parses charger messages, and adds short-circuit pre-checks for safer field operation.
Key Features
Designed for reliable EV charger validation.
- 01Uses a GB-standard DC EV charging socket and supports current GB/T 2023-2025 standards, with optional protocol conformance, interoperability and metering modules.
- 02Vehicle-control-pilot simulation reproduces the charging process. Manual controls switch PE, DC+/DC-, CC1/CC2, S+/S-, S2/S3 and other charger signals for fault diagnosis.
- 03The tester exports and parses charger messages for operating-state analysis and abnormal-fault diagnosis. A short-circuit pre-check runs before charging to identify wiring risks.
- 04One-key start and stop, an Android operating platform, and PC software provide a direct workflow for test setup, execution and maintenance.
- 05The mobile trolley case is waterproof, pressure-resistant, shock-resistant and corrosion-resistant, with an IP67 closed-state protection rating for complex outdoor environments.
- 06Optional waveform, metering, GPS, temperature/humidity, timing and removable-battery modules extend the tester for interoperability and field verification work.
Technical Specifications
Core specifications
| Connector Standard | GB/T |
|---|---|
| Connector Sockets | 2; DC 1000 V, 250 A |
| Test Object | DC charger |
| Sampling Accuracy | Standard ±0.5% FS (10 V≤U≤1000 V; 1 A≤I≤250 A); optional ±0.05% RD over the same ranges, 0.05-class energy metering |
| Equivalent Resistance | 50 ohm-11 kohm, 1 ohm step |
| Insulation Fault Simulation | 10 kohm-2 Mohm, 1 kohm step |
| Charging Parameter Simulation | PE, DC+/DC-, CC1/CC2, S+/S-, S2/S3 switching; DC short-circuit and battery reverse simulation |
| Working Power | 100-240 VAC, 50 Hz/60 Hz; 150 W |
| Communication Interfaces | LAN x1, RS232 x2, Wi-Fi x1 |
| External Load | No built-in load; external load up to 250 A |
| Display | 10.1-inch touch screen |
| PC Software | Included |
| Dimensions / Weight | L561 x W455 x H265 mm, trolley case; approx. 25 kg |
| Operating Environment | Operating: -20 to 50 °C; storage: -30 to 70 °C; relative humidity: ≤90% (10-30 °C), ≤75% (30-40 °C), ≤45% (40-50 °C) |
| Reference Standards | GB/T 20234.1-2023; GB/T 20234.3-2023; GB/T 18487.1-2023 Appendix B; GB/T 18487.5-2024; GB/T 27930-2023; GB/T 27930.2-2024; GB/T 34658-2025; GB/T 34657.1-2025; JJG 1192-2023; JJG 1149-2022; GB/T 44993 |
Application Scenarios
Where this product is used
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